@misc{indiciaec57eb1f8edc3,
  title = {Preliminary map of probable well yields from bedrock in Wisconsin},
  author = {R. G. Borman},
  year = {1971},
  doi = {10.3133/ofr7150},
  url = {https://pubs.usgs.gov/publication/ofr7150},
  note = {Source identifier: ofr7150}
}